Overview
The BQ7694000DBTR is a highly integrated battery monitor and protector from Texas Instruments, designed for advanced battery management systems (BMS). This product belongs to the category of battery management ICs and is specifically tailored for multi-cell lithium-ion, lithium-polymer, and lithium-iron-phosphate battery packs. It is ideal for applications requiring precise monitoring, protection, and balancing of battery cells. The BQ7694000DBTR stands out for its robust safety features, high accuracy, and low power consumption, making it a competitive choice for industrial, automotive, and consumer electronics markets.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Series Cells | 3 to 10 | Supports multi-cell configurations | |
| Operating Voltage Range | 4.5 to 60 | V | Wide input range for flexibility |
| Cell Voltage Measurement Accuracy | ±10 | mV | High precision monitoring |
| Current Measurement Accuracy | ±1 | % | Ensures reliable current sensing |
| Communication Interface | I2C | Standard interface for easy integration | |
| Temperature Measurement | Yes | Supports internal and external sensors | |
| Package | TSSOP-38 | Compact form factor | |
| Operating Temperature Range | -40 to 85 | °C | Suitable for harsh environments |
| Protection Features | Overvoltage, Undervoltage, Overcurrent, Short Circuit | Comprehensive safety mechanisms | |
| Balancing Current | Up to 150 | mA | Supports cell balancing |
Key Features
- High Accuracy Monitoring: Provides precise cell voltage, current, and temperature measurements.
- Comprehensive Protection: Includes overvoltage, undervoltage, overcurrent, and short-circuit protection.
- Cell Balancing: Supports passive balancing to ensure uniform cell performance.
- Low Power Consumption
- Flexible Configuration: Supports 3 to 10 series cells, making it adaptable to various battery pack designs.
- Robust Communication: I2C interface ensures seamless integration with microcontrollers and other systems.
Applications
The BQ7694000DBTR is widely used in applications requiring advanced battery management, such as:
- Electric Vehicles (EVs): Ensures safe and efficient operation of battery packs.
- Industrial Equipment: Provides reliable monitoring and protection for heavy-duty batteries.
- Portable Electronics: Enhances battery life and safety in devices like laptops and power tools.
- Energy Storage Systems: Supports grid-tied and off-grid energy storage solutions.
Q & A
1. What is the maximum number of cells supported by the BQ7694000DBTR?
The BQ7694000DBTR supports up to 10 series cells.
2. What is the accuracy of the cell voltage measurement?
The cell voltage measurement accuracy is ±10 mV.
3. Does the BQ7694000DBTR support cell balancing?
Yes, it supports passive cell balancing with a current of up to 150 mA.
4. What communication interface does this IC use?
It uses the I2C communication interface.
5. What protection features are included?
It includes overvoltage, undervoltage, overcurrent, and short-circuit protection.
6. What is the operating temperature range?
The operating temperature range is -40 to 85°C.
7. Can it measure temperature?
Yes, it supports both internal and external temperature sensors.
8. What is the package type of the BQ7694000DBTR?
It comes in a TSSOP-38 package.
9. Is it suitable for electric vehicle applications?
Yes, it is widely used in electric vehicles for battery management.
10. What is the operating voltage range?
The operating voltage range is 4.5 to 60 V.
